Surveying To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is 5000 m 7000 m 6000 m 4000 m 5000 m 7000 m 6000 m 4000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The main object of the astronomer to obtain Astronomical latitude Astronomical longitude All of these Astronomical bearing Astronomical latitude Astronomical longitude All of these Astronomical bearing ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is f/H sec θ f/H cos ½θ f sec θ/H f/H f/H sec θ f/H cos ½θ f sec θ/H f/H ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following methods of contouring is most suitable for a hilly terrain? Tachometric method Cross-sections method Direct method Square method Tachometric method Cross-sections method Direct method Square method ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is 1 : 30,000 1 : 10,000 1 : 20,000 1 : 15,000 1 : 30,000 1 : 10,000 1 : 20,000 1 : 15,000 ANSWER DOWNLOAD EXAMIANS APP
Surveying If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by tan H = tan φ . cot δ sin H = tan φ . cot δ None of these cos H = tan φ . cot δ tan H = tan φ . cot δ sin H = tan φ . cot δ None of these cos H = tan φ . cot δ ANSWER DOWNLOAD EXAMIANS APP
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